I am not able to get any visualisation of the cube in rviz as well when using this topic /basic_grasping_perception/object_cloud in rviz
Unable to get message in rostopic echo /basic_grasping_perception/find_objects/result?
Have you sent the goal to the /find_objects Action Server? Keep in mind that you need to send a goal to the Action Server in order to trigger the perception process. I’ve just tested it in the Academy and it is working properly for me.
Yes sir , I gave the goal command. I will try again and report back sir.
How I could send the goal to action Server?
You have it explained in the Chapter’s notebook. It’s something like this:
rostopic pub /basic_grasping_perception/find_objects/goal grasping_msgs/FindGraspableObjectsActionGoal "header: seq: 0 stamp: secs: 0 nsecs: 0 frame_id: 'base_link' goal_id: stamp: secs: 0 nsecs: 0 id: '' goal: plan_grasps: false"
@albertoezquerro I am also unable to get detect object in front of robot , I have sent the goal /find_objects Action Server as mentioned in the course . same problem as @vasank1958 mentioned.
@vasank1958 were you able to detect the object?
I was experiencing the same issue and I read the next section on the lecture note saying we need to run " rostopic echo /basic_grasping_perception/find_objects/result" and then run
rostopic pub /basic_grasping_perception/find_objects/goal grasping_msgs/FindGraspableObjectsActionGoal “header:
Then come back to the terminal you run " rostopic echo /basic_grasping_perception/find_objects/result"
You will see the data on that topic!